Transmission band



` drums.4

Patented Sept. 22, 192.5.

UNITED sTATEs PATENTOFFICE.

\ ELMER r. oETiNGER, or BUFFALO, NEW YORK.

TRANSMSSION BAND.

Appiicaiion md september 19,1924. serial No. 738,683.

tion with the planetary transmission meclianismsof automobiles.. Y

fOneU of its objects is to improve the construction of such bands with a view of per iiiitting their ready and convenient application and removal to and yfrom the brake Another object of this invention is to provide a sectional, deinountable band of this character which can be readily assembled and disiiienibered.

Inthe accompanying drawings: i

Figure 1`is a perspective view of a transmission band embodyingmy improvements. Figure 2'is an enlarged longitudinal section thereon on line .2e-2, Fig. 1. Figure 3 is a transverse section on line 3 3, Fig. 2. Figures 4 and 5 are perspective views of the detachable coupling ear and its companion member, respectively. j

Similar characters of reference indicate corresponding parts throughout the several `adapted to encircle a brake drum and composed of two sections 10, 10 arraiigedside by side in spaced relation to form an intervening' circumferential guide channel or slot `11 between them. These sections are held iii spaced relation at one end by a forked coupling ear 12 riveted or otherwise fastened thereto and at their other end by atie or base-plate 13, which constitutes one of the complementary parts of a vtwo-piece coupling ear, the other part being detach-4 able and designated by the numeral 14.

19. side of the backing strip so that their Shanks 20 engage tlieslot 11 between the band-sections 10, 10, while their heads bear against the adjoining marginal portions of the latter,`as shown in Figs. 1 and 2. By this construction, the slot 11 and fasteners 18 form complementary guiding and interlock\ ing devices for reliably clampingthe inner and outer band members in place` and yet permit the ready removaloftheinner inember from the outer one. L

The undersides of the coupling ear 12 and thebase plate 1,3 ofntheother coupling ear are provided with longitudinal grooves 2 1 eXtei/iding from end to endlr thereofand thel` tie barsy 15 `are provided' lwith similar grooves 22.: for` receiving the fastener-heads 1.9, during the act of applying orhthreadiiig,

the'inner band member tomtheouter band member. i Y y j j In order to retain the inner member` or band in place on the supportingmember and prevent` its circumferential displacenient t relative thereto, the vbacking vstripl 16 may be providediat one end with one or more radial studs 23` which are Aadapted to interlock with corresponding `openings `24: formed in the adjoiningends of the bandsections r10,V v10. l The opposite ends of the latter `have inwardly-facing st op fianges 25 j which limit then'circu'mferential .j movement ofl the .liner in I. one direction and f which.

also insure fthe proper'registration of the studs with their interlocking openings.

iWhen these bands, asa `unit including` both inner and outer` members, are substituted yfor lthose now in use, it is` preferred tohave one of their coupling ears detachnecessity'. of removing the latter. To this end, the base-plate `13 of theidetachableear is provided'on its face with headed-coupling pins"26iwhile its companion member 14|, has

corresponding key-hole A slots 27 arranged lengthwise thereof.A At its'frontl end, this' base-plate has an outwaidly-extendiiig-lug or projection 28, and on the underside of its corresponding end, the ear-member 14 has a recess or groove 29 for receiving said lug. The opposing end walls of the lug and recess are inclined, as shown at 30, whereby the detachable ear is held against outward dsplacen'ient relative t0 its base- Tlie latter project beyond the' outer k able, so that each band can be mounted on 4 its drum by inserting it through theopen' ing of the `transmission `case without the its base plate to bring the heads of the coupling pins 26 in register with the enlarged portions of the slots 27, after which the ear can be freely lifted off the baseplate. In attaching the coupling ear to the band, a reversal of the steps just described iscffected. It is to be understood that this detachable ear is only removed at the time of the first installation of the band on the A drum. Thereafter, when the brake lining 17 becomes worn, it is only necessary to replace it vwith la new one, without removing the supporting band 10, 10 from the drum.

The removal of the worn liner is effected lby springing the stud end of the flexible backing 16 inwardly to remove its studs sections.

tachable from the other.

2. Al transmission band of the characterA 23 from the' openings 24.- in the outer band sections 10, 10, and then pulling the linerbacling outwardly until the same has been completely withdrawn from the outer band In replacing a new liner for the worn one, it is guided on the outer supporting member with its fasteners 18 engaging the slot 11 thereof and forced around said member until its free end encounters the stop flanges 25, after which the studs 23 are sprung into their corresponding openings 24,

I claim as my invention:

1. A transmission band of the character described, comprising a supporting member consisting of bands arranged side by side and spaced to form a circumferential slot between them,a removable lining member mounted on said supporting member and interlocking with said slot, and coupling members applied to .the free ends of said bands forholding them in spaced relation, one of said coupling members being composed of two part-s, Aone of which is dedescribed,comprising a supporting member consisting of bands arranged side by side and spaced to form `a circumferential slot between them, aremovable lining member mounted on said supporting member and interlocking with said slot', a coupling member mounted on one end of said supporting bands, a tie-plate mounted on the opposing end thereof, the coupling member and the tie-plate holding said bands in spaced relation, and a second coupling member detachably mounted on said tie-plate.

3. A` transmission bandof the character described, comprising a supporting member consisting of bands arranged side by side and spaced to form a circumferential slot between them, a removable lining member mounted on said supporting member and interlocking with said slot, a coupling member mounted on one end of said supporting bands, ay tie-plate mounted on the opposing end thereof, the coupling member and the tie plate holding said bands in spaced relation, a second coupling member detachably connected to said tie-plate, and comp-lementary lockingv devices on said lastnamed parts for holding the detachable coupling member against movement in all directions relative to the tie-plate.

4l. A transmission band ofthe character described, comprising a supporting member consisting of bands larranged side by side and spaced to form a circumferential slot between them, a removable lining member mounted on said supporting member and in terlocking with said slot, a coupling member mounted on one end of said supporting bands, a. tie-plate mounted on the opposing end thereof and having an outwardly-facing lug thereon, and a second coupling member detachably mounted on said tie-plate and having a recess therein for receivingv said lug.

5. A transmission band of the character described, comprising a supporting member consisting of bands arranged side by side and spaced to form a circumferential slot between them, a removable lining member` mounted on said supporting member and interlocking with said slot, a coupling member mounted on one end of said supporting bands, a tieplate mounted on the opposing end thei'eof and having headed-coupling pins near one end thereof and an outwardreceiving said lug, and a screw passingv transversely through said lug and the ad- Joining portions of said secon-d coupling member.

ELMER F. OETINGER. 

